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Intermittent fasting window calculator
When your fast ends and your eating window opens for 12:12, 16:8, 18:6, 20:4 and OMAD, with what your body is doing hour by hour.
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- No sign-up
- Works on any device
About Intermittent fasting window calculator
Enter when you start fasting and choose a plan from 12:12 to 20:4 or OMAD to see when the fast ends and your eating window opens. A timeline describes what your body is doing hour by hour. In 16:8 you fast 16 hours and eat within 8.
How to use Intermittent fasting window calculator
- Enter your numbers above.
- The result updates instantly as you type.
- Change any value to compare different cases.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
What does 16:8 intermittent fasting mean?
You fast for 16 hours each day and eat only within an 8 hour window, for example noon to 8 pm.
Is Intermittent fasting window calculator free?
Yes. Intermittent fasting window calculator on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.